Home / 80,288.20-120,383.70-35,906.68

Finding the Fourth Proportional to 80,288.20, 120,383.70 and 35,906.68

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Solution

The fourth proportional to 80,288.20, 120,383.70 and 35,906.68 is: 53,838.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,288.20 : 120,383.70 = 35,906.68 : x
  2. Step 2: Convert to fraction form
    80,288.20/120,383.70 = 35,906.68/x
  3. Step 3: Cross multiply
    80,288.20x = 120,383.70 × 35,906.68
  4. Step 4: Simplify right side
    80,288.20x = 4,322,578,993.12
  5. Step 5: Solve for x
    x = 4,322,578,993.12/80,288.20
  6. Step 6: Final answer
    x = 53,838.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.